136984479 has 4 divisors (see below), whose sum is σ = 182645976. Its totient is φ = 91322984.

The previous prime is 136984469. The next prime is 136984493. The reversal of 136984479 is 974489631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136984479 - 2⁹ = 136983967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136984459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22830744 + ... + 22830749.

It is an arithmetic number, because the mean of its divisors is an integer number (45661494).

Almost surely, 2^136984479 is an apocalyptic number.

136984479 is a deficient number, since it is larger than the sum of its proper divisors (45661497).

136984479 is an equidigital number, since it uses as much as digits as its factorization.

136984479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45661496.

The product of its digits is 1306368, while the sum is 51.

The square root of 136984479 is about 11704.0368676795. The cubic root of 136984479 is about 515.4942049590.

The spelling of 136984479 in words is "one hundred thirty-six million, nine hundred eighty-four thousand, four hundred seventy-nine".